/Engine/Plugins/Runtime/Metasound/Source/MetasoundGraphCore/Public/MetasoundFacade.h
FNodeFacadehas a static vertex interface. This will return true only if the input interface is equal to the default interface.
virtual bool IsVertexInterfaceSupported ( const [FVertexInterface](API\Plugins\MetasoundGraphCore\FVertexInterface) & InInterface ) const